Car-truck side frame and journal-box construction



March 17, 1925.

J. c. LARSEN CAR TRUCK SIDE FRAME AND JOURNAL BOX CONSTRUCTION Filed Nov. .14, 1923 Tix u u I- l L ltllll Patented Mar. 17, 1925.

UNITED STATES PATENT OFFICE.

moon 0. LARSEN, orooLuMBUs, oHIo, assreivon TO THE BUCKEYE STEEL GAS'IiNGS COMPANY, or COLUMBUS, O-I-IIO.

CAR-TRUCK SIDE AND JOURNAL-BOX CONSTRUCTION.

Application filed November 14, 1923. Serial No. 674,671.

To all whom it may concern Be it known that I, JACOB G. Larsen, a citizen of the United States, and resident of Columbus, in the county of Franklin and State of Ohio, have. invented certainnew and useful Improvements in Oar-Truck Side Frame and J ournal-Box Constructions; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to means for connecting journal boxes and side frames of car trucks and has for its objects the provision of means whereby the accidental separation of the side frame and the journal box will be prevented, the provision of a fastening device permanently mounted in the side frame so that it cannot be removed and lost, the provision of a construction which will permit the journal box to be quickly connected or disconnected when wheel changes or other repairs to the truck are necessary,

- and the provision of a construction which will permit the journal box to adjust itself to the position of the axle. Thesestated objects and other objects which will hereinafter incidentally appear are attained in such a panying drawings, and the invention resides in certain novel features which will be particularly pointed out in the appended.

clanns.

In the drawings, F 1gure l is a longitudinal section. of an end. portion of a truck side frame with ajournal box inv section connected therewith; Figure 2 is a. sideview of a journal box with a portion of the side Figure 3 is an end view of the side frame; Figure l is a horizontal section on the line 4-4: of Figure 1, and Figure 5 is a side view of the journal box.

The side frame 1 is provided at its ends with pedestal jaws 2, 3, which are provided in their inner opposed sides with vertical grooves 4: opening through the jaws at their lower ends. tween the jaws and is provided on its sides with lugs 6 which are adapted to enter the grooves 4 as the side frame is moved vertically downward over the journal box, the relative descending movement of the side construction as is illustrated in the accomframe in section on the line 2-2 ofFig. 1;

The journal box 5 is fitted be- I frame being limited by thelugs coming into contact with the closed upper ends 7 of the grooves, and the arch. 8 between the jaws coming to rest upon the top 9 of the box;

The box is provided with spaced transverse 1 gibs 10, 11 extending across its top and bctween which the arch of the side frame is. received. The innerfgib 10 extends. only across the top of box,- but the outer gib 11 extends down the sides of the box inspaced relation to the lugs 6 so that it forms a guide for the side frame while the latter is being assembled with the box. The dis tance between the gibs isslightly greater than th width ofthe side frame so that while the cndwise accidental removal of the journal boxfrom the side frame is pie vented, alimited shifting of the box is perm1tted so that it will readily accommodate itself to the position of the car axle.

In the outer jaw 3 of the side frame is formed an obliquely disposed recess or chamber 12 which opens downwardly into the groove 4 and from the'top of which a relatively reduced here or opening 13 ex-- tends through the upper web or body portion of the jaw. In the upper side of the web is a. notch 1 1 which receives and retains the upper end of a locking pin 15 fitted slidably through the opening 13 and having a head 16 at its lower end playing in the reccss or chamber 12 and normally projecting I from said groove 4;.

chamber. into and across the In assembling the parts, the pin is inserted upwardly through the opening 13 and its upper end isthen bent, as shown at 17, to engage the notch 14. Complete withdrawal and loss of the locking pin is thus prevented.

As the side frame moves downwardly into position over the journal box the upper beveled side of the lug 6 will impinge against the outer angular-1y disposed head 16 of the locking pin and will push the pin upwardly until its head clears the lug whereupon the pin will return by gravity so that the head will engage under the lug and lock the box to the side frame. I

If, for any reason, it becomes necessary to remove a pair of wheels, the locking pin of each box is first moved upward in the angularly disposed chamber 12, until it ice clears the lug 6 of the boX;-the side frames clears the pedestal jaw 3 of the frame, after which the pair of wheels witlraxle and journal boxes may be rolled out sufficiently to allow space for the new pair of wheels between the truck and the old wheels. I

After transferring the journal'boxes and parts to the new axle, the complete unit of wheels, axle, and journal boxes are rolled into position and the side frames lowered.

It will be noted that the disassembling andassembling of the side frames and the journal boxes is accomplished by one uninterrupted vertical movement ofjthe side frame.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. A truck side frame having jaws with vertical grooves opening through their lower ends, a journal box spanned by the jaws, lugs on the journal box receivable in the vertical grooves, and a locking element mounted in one jaw to project into the groove therein and engage under the lug on the journal box.

2. A truck side frame havingjaws with vertical grooves opening through their lower ends, a journal box spanned by the jaws, lugs on the journal box receivable in the grooves, and a locking device permanently mounted in one jaw and engageable under the lug on the journal box.

3. A truck side frame having jaws with vertical grooves opening through lower ends, a journal box spanned by the .jaws and provided on its sides with lugs receivable in the grooves, and a gravitating locking pin mounted in one aw and pro ecttheir,

having an obliquely disposedopening therethrough, a relatively enlarged chamber at the lower end of the opening communicating with the groove in said jaw, and a lateral notch at the upper end of the opening, a locking pin fitted slidably through the opening and, having a stop member at its upper end to engage said notch, a head at the lower end of said pin playin'g'in said chamber and normally projecting into the communicating groove, and a journal box spanned by thejaws and provided on its sides with lugs received in the g rooves,'the lug received in one groove being retained therein by the head of the locking pin.

5. A truckside frame having spaced jaws with vertical inner opposed faces and having vertical grooves in said faces opening through the lower ends of the same, and a journal box provided with lugs onits sides to enter said grooves and be housed by the back and side walls thereof, the box being further provided with gibs between which the side frame is received, one of said gibs extending down the sides of the box in spaced relation to the lugs.

In testimony whereof, I' have signed this specification in the presence of two subscribing witnesses. e,

, JACOB C. LARSEN.

Witnesses: v

S. J. PHENEGER,

W. W. MATOHNEER. 

